I'm in the planning stages and have just settled on using cork as my insulation on ceiling, walls and under the wood flooring. My question is- If I glue down the cork to the base flooring, do I also need to put a layer of plywood down before I lay my wood floor down? Or is it advisable to put the flooring directly over the cork? Should I also use a thermal sheet layer and if so, should I place it under or over the cork underlayment (yes it's really a word - in the cork world). Thank you.